A-9C
| Brand | Heathkit |
| Manufacturer | Heath Company, Daystrom, Incorporated |
| Function | Amplifier, Power (Kit) |
| Produced | 1957 |
| Country | United States |
| Signal Path | Analog Hardware |
| Dimensions | 35.6 × 18.5 × 22.4 cm (W × H × D) |
| Weight | 23lbs (Shipped) |
| Power | 105-125VAC, 50/60Hz 100W |
| Frequency Response | 20Hz-20kHz ±1dB |
| Output Power | 20W |
| THD (10W) | 1% |
| Impedance Load | 4/8/16/500Ω |
| Output Tube | 6L6 |
| Tube Complement | 6L6G (x2), 12AX7, 12AU7 (x2), 5U4G |
| MSRP (1957) | $35.50 |
| Channels | 1 Channel |
| Controls |
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| Links | Predecessor: A-9B · Successor: AA-181 |